Team Deathmatch (Kill other players - Core/Normal Game mode)
One in the chamber (1 bullet, 3 lives a round, gain bullets from kills - Wager Match Game mode - Gamble Credits)
Gun Game (Get a kill with every weapon to win, start at tier 1 and end at tier 20 - Wager Match Game mode)
Sharpshooter (Everyone has the same weapon, weapons cycle every 45 seconds - Wager Match Game Mode)
Team Tactical (A variety of game modes - Core Game mode)
Search and Destroy (Defend and Destroy objectives,1 live per round - Core Game Mode)
Hardcore Search and Destroy (Same as Search and Destroy, but with extra bullet damage and no heads up display)
Zombies (Co-Op gamemode - fight for survival against wave after wave of zombies, the waves get progressively harder)